From: oleg@redhat.com (Oleg Nesterov)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 8/8] ARM64: Add uprobe support
Date: Fri, 9 Jan 2015 18:45:24 +0100 [thread overview]
Message-ID: <20150109174524.GA13161@redhat.com> (raw)
In-Reply-To: <54AEC470.50509@redhat.com>
On 01/08, Pratyush Anand wrote:
>
> On Thursday 08 January 2015 10:33 PM, Will Deacon wrote:
>>
>> I'm assuming that means you don't support compat (AArch32) tasks with this?
>
> Hummm.. Yes, compat not yet supported.
>
> I will come back on this.
I obviously do not know how difficult is to support the compat tasks, and
in any case I leave this to you and Will.
But if this is not simple, perhaps the initial implementation could simply
nack the probe in arch_uprobe_analyze_insn() if this mm is not 64-bit.
Although I do not see something like is_64bit_mm() in arch/arm64... So may be
the first version can even ignore this problem and just document the fact
that AArch32 tasks are not supported.
Oleg.
WARNING: multiple messages have this Message-ID (diff)
From: Oleg Nesterov <oleg@redhat.com>
To: Pratyush Anand <panand@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>,
"tixy@linaro.org" <tixy@linaro.org>,
"linux@arm.linux.org.uk" <linux@arm.linux.org.uk>,
"ananth@in.ibm.com" <ananth@in.ibm.com>,
"sandeepa.prabhu@linaro.org" <sandeepa.prabhu@linaro.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"anil.s.keshavamurthy@intel.com" <anil.s.keshavamurthy@intel.com>,
"masami.hiramatsu.pt@hitachi.com"
<masami.hiramatsu.pt@hitachi.com>,
"wcohen@redhat.com" <wcohen@redhat.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [RFC 8/8] ARM64: Add uprobe support
Date: Fri, 9 Jan 2015 18:45:24 +0100 [thread overview]
Message-ID: <20150109174524.GA13161@redhat.com> (raw)
In-Reply-To: <54AEC470.50509@redhat.com>
On 01/08, Pratyush Anand wrote:
>
> On Thursday 08 January 2015 10:33 PM, Will Deacon wrote:
>>
>> I'm assuming that means you don't support compat (AArch32) tasks with this?
>
> Hummm.. Yes, compat not yet supported.
>
> I will come back on this.
I obviously do not know how difficult is to support the compat tasks, and
in any case I leave this to you and Will.
But if this is not simple, perhaps the initial implementation could simply
nack the probe in arch_uprobe_analyze_insn() if this mm is not 64-bit.
Although I do not see something like is_64bit_mm() in arch/arm64... So may be
the first version can even ignore this problem and just document the fact
that AArch32 tasks are not supported.
Oleg.
next prev parent reply other threads:[~2015-01-09 17:45 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-31 15:21 [RFC 0/8] ARM64: Uprobe support added Pratyush Anand
2014-12-31 15:21 ` Pratyush Anand
2014-12-31 15:21 ` [RFC 1/8] ARM64: Move BRK opcodes defines from kprobes.h to insn.h Pratyush Anand
2015-01-08 16:55 ` Will Deacon
2015-01-08 16:55 ` Will Deacon
2015-01-08 17:31 ` Pratyush Anand
2015-01-08 17:31 ` Pratyush Anand
2014-12-31 15:21 ` [RFC 2/8] ARM64: Refactor kprobes-arm64 Pratyush Anand
2015-01-08 16:55 ` Will Deacon
2015-01-08 16:55 ` Will Deacon
2015-01-08 17:33 ` Pratyush Anand
2015-01-08 17:33 ` Pratyush Anand
2015-01-08 17:36 ` Will Deacon
2015-01-08 17:36 ` Will Deacon
2015-01-08 17:39 ` Pratyush Anand
2015-01-08 17:39 ` Pratyush Anand
2014-12-31 15:21 ` [RFC 3/8] Kernel/uprobe: Define arch_uprobe_exception_notify as __weak Pratyush Anand
2015-01-02 17:43 ` Oleg Nesterov
2015-01-02 17:43 ` Oleg Nesterov
2015-01-04 13:50 ` Pratyush Anand
2015-01-04 13:50 ` Pratyush Anand
2014-12-31 15:21 ` [RFC 4/8] ARM64: Add instruction_pointer_set function Pratyush Anand
2015-01-08 16:59 ` Will Deacon
2015-01-08 16:59 ` Will Deacon
2015-01-09 5:18 ` Pratyush Anand
2015-01-09 5:18 ` Pratyush Anand
2014-12-31 15:21 ` [RFC 5/8] ARM64: Re-factor flush_ptrace_access Pratyush Anand
2015-01-02 17:51 ` Oleg Nesterov
2015-01-02 17:51 ` Oleg Nesterov
2015-01-02 18:19 ` Oleg Nesterov
2015-01-02 18:19 ` Oleg Nesterov
2015-01-04 13:50 ` Pratyush Anand
2015-01-04 13:50 ` Pratyush Anand
2014-12-31 15:21 ` [RFC 6/8] ARM64: Handle TRAP_HWBRKPT for user mode as well Pratyush Anand
2015-01-02 18:05 ` Oleg Nesterov
2015-01-02 18:05 ` Oleg Nesterov
2015-01-08 17:01 ` Will Deacon
2015-01-08 17:01 ` Will Deacon
2015-01-08 17:51 ` Pratyush Anand
2015-01-08 17:51 ` Pratyush Anand
2014-12-31 15:21 ` [RFC 7/8] ARM64: Handle TRAP_BRKPT " Pratyush Anand
2014-12-31 15:21 ` [RFC 8/8] ARM64: Add uprobe support Pratyush Anand
2015-01-02 17:23 ` Oleg Nesterov
2015-01-02 17:23 ` Oleg Nesterov
2015-01-04 13:49 ` Pratyush Anand
2015-01-04 13:49 ` Pratyush Anand
2015-01-04 18:40 ` Oleg Nesterov
2015-01-04 18:40 ` Oleg Nesterov
2015-01-05 4:17 ` Pratyush Anand
2015-01-05 4:17 ` Pratyush Anand
2015-01-08 17:03 ` Will Deacon
2015-01-08 17:03 ` Will Deacon
2015-01-08 17:54 ` Pratyush Anand
2015-01-08 17:54 ` Pratyush Anand
2015-01-09 17:45 ` Oleg Nesterov [this message]
2015-01-09 17:45 ` Oleg Nesterov
2015-01-12 4:50 ` Pratyush Anand
2015-01-12 4:50 ` Pratyush Anand
2015-01-09 17:59 ` Oleg Nesterov
2015-01-09 17:59 ` Oleg Nesterov
2015-01-12 5:04 ` Pratyush Anand
2015-01-12 5:04 ` Pratyush Anand
2015-01-12 6:45 ` Pratyush Anand
2015-01-12 6:45 ` Pratyush Anand
2015-01-12 14:38 ` Oleg Nesterov
2015-01-12 14:38 ` Oleg Nesterov
2015-01-12 14:28 ` Oleg Nesterov
2015-01-12 14:28 ` Oleg Nesterov
2015-01-01 1:59 ` [RFC 0/8] ARM64: Uprobe support added Pratyush Anand
2015-01-01 1:59 ` Pratyush Anand
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